GAH electrastream User And Installation Manual page 33

CONTENTS CONTENTS CONTENTS CONTENTS CONTENTS
4-3 Hot Water System
Impor Impor tant Information tant Information ----------------------------------------- -----------------------------------------
Impor Impor Important Information tant Information tant Information ----------------------------------------- ----------------------------------------- ----------------------------------------- 4
Section 1 Intr Section 1 Introduction Section 1 Intr Section 1 Intr Section 1 Intr oduction oduction oduction oduction
1-1 Introduction ---------------------------------------------- 5
Note
1-2 System Layout ------------------------------------------- 8
The Electrastream system must not be
installed in any enclosed space where the
1-3 Parts Supplied ------------------------------------------- 11
air temperature could exceed the
1-4 The Electrastream System ------------------------------- 12
maximum electrical design ambient of
30°C.
1-5 Tri Core Heater Operation -------------------------------- 13
Adequate ventilation should be provided
for airing cupboards and enclosed
compartments.
Section 2 Operator Controls Section 2 Operator Contr Section 2 Operator Contr Section 2 Operator Contr Section 2 Operator Contr ols ols ols ols
Humidity may also present a problem
2-1 System Control ------------------------------------------ 14
within airing cupboards.
2-2 Electrastream Control Unit ------------------------------- 16
2-3 Shut Off Valves ------------------------------------------ 20
2-4 Temperature & Pressure Relief Discharge ---------------- 22
2-5 Thermostatic Mixing Valve ------------------------------ 22
2-6 Servicing ------------------------------------------------ 22
Section 3 T Section 3 T Section 3 Technical Information Section 3 T Section 3 T echnical Information echnical Information echnical Information echnical Information
3-1 Specifications ------------------------------------------- 23
3-2 Dimensions --------------------------------------------- 25
3-3 Wiring --------------------------------------------------- 29
Section 4 Installation Section 4 Installation Section 4 Installation Section 4 Installation Section 4 Installation
4-1 Building Control ----------------------------------------- 31
4-2 Electrical ------------------------------------------------ 31
4-3 Hot Water System --------------------------------------- 33
TWIN COIL CYLINDER
4-4 Heating System ----------------------------------------- 37
4-5 Expansion Discharge ------------------------------------ 40
4-6 System Pressure ---------------------------------------- 43
4-7 Electrastream Connections - ---------------------------- 44
Fig. 4-3a Cylinder Temperature & Over
Temperature Cut-Out Box
Section 5 Commissioning Section 5 Commissioning Section 5 Commissioning Section 5 Commissioning Section 5 Commissioning
5-1 Commissioning ----------------------------------------- 47
Note
For wiring see figs. 3-3a and 3-3b.
Section 6 Servicing Section 6 Servicing Section 6 Servicing Section 6 Servicing Section 6 Servicing
6-1 Routine Service ----------------------------------------- 50
Section 7 Fault Finding Section 7 Fault Finding Section 7 Fault Finding Section 7 Fault Finding Section 7 Fault Finding
7-1 Fault Finding -------------------------------------------- 52
Health & Safety Health & Safety Health & Safety Health & Safety ------------------------------ Health & Safety ------------------------------ Inside Front Cover ------------------------------ ------------------------------ ------------------------------
BEFORE STARTING THE INSTALLATION OF THE ELECTRASTREAM CHECK ALL COMPONENTS HAVE
BEEN DELIVERED AND ARE IN SATISFACTORY CONDITION - Refer to 1-3 .
4-3.1 Unvented Hot Water Cylinder
The cylinder may be installed at any convenient above ground location within the
property. As Electrastream is a sealed system, the cylinder is equally effective on any
floor.
The cylinder must always be installed vertically.
Avoid positioning the cylinder where it may be subjected to frost.
The floor must give adequate support to the filled cylinder.
Cylinders must have frost protection when they are installed where low temperatures
could be a potential problem - see 1-4.8.
Cylinders with legs are supplied with self-tapping screws for floor fixing.
For servicing and cylinder replacement, clearance is required all round the cylinder -
recommended 100mm minimum.
The cylinder must be fitted with a drain valve, this should be as low as possible and able
to drain at least 80% of the cylinder’'s volume.
The cylinder may be installed below ground i.e. in a basement, providing that the
expansion relief discharge pipe is plumbed to a metal receptacle with a suitable pump
and switch arrangement, current Building Regulations give details of this. An alternative
is to use a Hepworth HepvO Self Sealing Waste Valve, this must be installed to the
manufacturers specification and building regulations.
4-3.2 Cylinder Temperature Sensor & Over Temperature Cut-Out Box
The cylinder temperature sensor and over temperature cut-out box is an integral part of
the Electrastream control system. The Electrastream must not be switched on if the box
is not fitted.
The unit consists of a temperature sensor and over temperature cut-out device, both are
wired back to the Electrastream control unit - see wiring diagrams figs. 3-3a and 3-3b.
The box must be fitted to the cylinder with its phial and sensor inserted into the socket
provided (located above the tri-core heater). A screw is provided to clamp it securely in
place.
The box is supplied pre-wired. If the cables need to be extended use suitable rated
cables and ensure they are correctly jointed, sleeved and covered.
4-3.3 Combination Valve
Refer to figs. 4-3b and 4-3c.
The Combination Valve is supplied separate, it has to be fitted to the pipework supplying
the cylinder.
For standard configurations see figs. 1-2a and 1-2b.
The valve has an integral 3.5 Bar Pressure Reducing Valve and a 6 Bar Expansion Relief
Valve. It also has an in-line strainer, this should be checked as part of routine inspection.
No shut off or isolation valves should be fitted between the combination valve and the
cylinder.
IMPORTANT
INST INST INSTALLA ALLA ALLATION ALLA TION TION TION CONTENTS CONTENTS CONTENTS
INST INST ALLA CONTENTS TION CONTENTS
1 INTRODUCTION 1 INTRODUCTION
1 INTRODUCTION 1 INTRODUCTION 1 INTRODUCTION
2 OPERA 2 OPERA 2 OPERA 2 OPERA 2 OPERATOR CONTROLS TOR CONTROLS TOR CONTROLS TOR CONTROLS TOR CONTROLS
3 TECHNICAL INFORMA 3 TECHNICAL INFORMA
3 TECHNICAL INFORMA 3 TECHNICAL INFORMA 3 TECHNICAL INFORMATION
4 INST 4 INST ALLA ALLA
4 INSTALLA 4 INST 4 INST ALLA ALLATION
5 COMMISSIONING 5 COMMISSIONING 5 COMMISSIONING 5 COMMISSIONING 5 COMMISSIONING
6 SERVICING 6 SERVICING 6 SERVICING
6 SERVICING 6 SERVICING
7 F 7 F 7 F 7 F 7 FAUL AUL AUL AUL AULT FINDING T FINDING T FINDING T FINDING T FINDING
HEAL HEAL TH & SAFETY TH & SAFETY
HEALTH & SAFETY HEAL HEAL TH & SAFETY TH & SAFETY
4 4 4
4 4
TION TION
TION TION
4 4 4 4 4
TION TION
TION TION
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